Road-cart spring



(No Model.)

F. DRIFPILL.

Y RUAD CART SPRING. No. 399,852. Patented Mar. 19, 1889.

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N. PETERS. Phut-Uxhognphnr. Washington, txt;

UNITED STATES ATnNT rrien.

FREDERICK DRIFFILL, OF STERLING, ASSIGNOR TO TIIE EUREKA COMPANY, OF ROCK FALLS, ILLINOIS.

ROAD-CART SPRING.

SPECIFICATION forming part of Letters Patent No. 399,852, dated March 19, 18819.

Application tiled eptem'ber 12, 1888. Serial No. 285,250. (No model.)

To all whom t may concern: a core or spring-rod, J, which extends down- Be it known that I, FREDERICK DRIFFILL, ward through the coiled spring K. The upa citizen of the United States, residing at Sterper end of the rod J projects above the plate ling, in the county of WVhiteside and State of G, and is there formed into loop J by means Illinois, have invented certain new and useful of which the frame D is pivotally attached in 5 5 Improvements in Road-Cart Springs; andI do any suitable manner to the thills C or some hereby declare the following to be a full, clear, part of the running-gears connected therewith.

and exact description ofthe invention, such as On the lower and depending end of the rod .I

will enable others skilled in the art to which it is adj ustably seated a circular plate, L, upon ro appertains to make and use the same, referwhich the lower end of the spring K is seated. 6o ence being had to the accompanying drawings, The upper end of the spring K abuts against and to letters or figures of reference marked the lower surface of the cross-plate G, and in thereon, which form a part of this specifica the use of the spring the lat-ter is compressed tion. and released between said plate L and plate G.

I5 My invention has reference to certain im- On the upper face of the plate L is formed a 65 provements in road-carts, and pertains more circular boss, IWI, which, with the plate L, has especially to the mode of suspendingthe body a threaded central opening, l through which of the vehicle to the runninggears thereof. the rod J passes, and by means of conforming The special object of myinvention is to supthreads formed on the contiguous portion of zo port the Weight of the body of the vehicle and the rod J the plate L can be adjusted verti- 7o its occupant in a peculiar mode to the thills, cally to form a proper seat for the lower end or some suitable part connected thereto, adof the spring K and regulate the compression justably upon coiled springs, and to so use the of the latter. On the under side of the plate latter in such relation to other parts as to G is centrally formed the downwardlyeXtend 25 avoid the rattling which has heretofore acing annular flange N, the opening O therein 7 5 companied and which is an objectionable feaconforming to the central opening in the plate ture in such use. G and constituting a downward prolongation As the mode of suspension at each side of of said latter opening, and said flange N, bethe vehicle is the same as that at the other ing projected within the adjacent end of the 3o side, I do not deem it necessary to describe spring K, serves to hold the latter in. proper 8o more than one of said modes of suspension. position. The circumference of the boss M In the drawings, Figure lis a perspective of and flange N is substantially the same as the a part of aroad-cart containing my invention. end openings in the spring K. Therefore the Fig. 2 is a detail of the spring and its adjunctcontiguous portions of said spring are coiled 3 5 ive parts. Fig. 3 is a plan of the upper cap or around and rest upon the periphery of said 85 cross plate of the frame which incloses the boss and iiange, respectively. The loop .I is spring. attached pivotally, as aforesaid, to the run- A A are the usual carrying-wheels. ning-gears of the vehicle, and the body of the B is the axle, and O C the thills attached at latter is pivotally attached in any suitable 4o their rear ends in any suitable mode to said manner to the loop F at the lower end of said 9o axle. frame, or the said frame may be optionally D is the frame, within which the supportused in an inverted position.

Iing-springs are seated. The frameD consists The frame D can be attached to any suitof the two downwardly-divergcnt rods E E, able portion of the body of the vehicle at each 45 bent inwardly, respectively, at their lower side of the latter, respectively, at some suit- 9 5 ends to form centrally the depending loop F, able point in the rear of the forward end of and suitably fastened at their upper ends in said body, said forward end being pivotally the extremities of the cross-plate G; In the connected to the thills C, or some part of the cross-plate G there is centrally formed an openrunning gears connected therewith, in the 5o in g, I-I, through which there is verticallypassed usual manner. roo

A the plate G and the opening O Vin flangeN suf- To avoid the rattle or noise aforesaid usually attendant upon the use of the coiled springs under similar circumstances, and to render the reciprocal movement of the rod J in the opening H noiseless, and at the same time in a direct line, I make the opening Il in riciently larger than the rod J to permit the seating in said opening of the cushionl. The exterior conformation ol the cushion I is such as to -tightlyrill both of the openings II and O, and said cushion is firmly seated in said openings by compression thereof, wedging, or any other suitableinode. A vertical opening, R, is formed centrally in the cushion I for the passage of the rod J, and is of such size as to permit said rod to .reciprocate in said cushion without unnecessary friction or binding. The cushion I can be made of wood, rubber, cork, or any other non-resonant material.

By the use ol' the cushion l) the rodJis held centrally in a direct line with the frame D, is permitted to reciprocate freely, and the usual wear and noise consequent upon the striking of said rod against the walls of the plate or its analogous part are avoided. The prolongation of the opening` lla'tlorded by the annular iiange N provides a more secure and greater depth of seat for the cushion l).

The rods E E are made downwardly diveri gent to prevent thelower portion ot' the spring l Ii in its lateral vibrations from striking against said rods.

lVhat I claim as my invention, and desire to secure by Letters Patent of the United States, is- 1 l. In combination with the body and running-gears ot' a road-cart, the rods E E, rela tively downwardly divergent, the loop F, the cross-plate G, provided with the enlarged opening Il and flange N, the rod J, provided with loop J and lower threaded exterior, the plate Il, provided with boss M and threaded opening M', and the cushion P, provided with the opening R, substantially as shown, and for the purpose described.

In con'ibination with the body and axle ol. a road-cart, the thills C, rods J, provided with the loop J adapted to be attached tol said thills, the rods E E, relatively downwardly divergent and provided with the loop F, adapted to be attached to the body of the vehicle, cross-plate G, provided with the enlarged openingI Il and Hauge N, the plate Il, provided with boss M, and the cushion I), provided with the opening R, substantially as shown, and for the purpose described.

In testimony whereof I afix my signature in presence of two witnesses.

FREDERICK DRIFFILL. 'Witnesses CHARLES E. STURTZ, JOHN G. MANAHAN. 

